Rotary plow



E. L. ROSE ROTARY PLOW Dec. 12, 1950 2 ShGtS-Sheet 1 Original FiledApril 30, 1945 3mm EL 05a Dec. 12, 1950 ROSE 2,533,693

ROTARY PLOW Original Filed April 30, 1945 2 Sheets-Sheet 2 Patented Dec.12, 1950 Ro'rAnYPLoW Eustace Loring Rose, Dunbar, W. Va., assignor toGravely Motor Plow and Cultivator Company,

Dunbar, W. Va.

Original application April 30, 1945, Serial No. 590,994. Divided andthis application February 9, 1948, Serial No. 7,072

2 Claims. 1

This invention relates to rotary plows and is a division of my copendingapplication Serial No. 590,994, filed April 30, 19 5, for Rotary Plow.

An object of this invention is to provide a rotary plow structure whichincludes a hub and radially disposed arms on which are mounted segmentalplow blades which are inclined to the vertical and are adapted uponrotation thereof to pulverize the dirt and throw the loose dirtlaterally of the line of travel.

Another object of this invention is to provide a plow structure of thiskind which is so constructed and arranged that the plow may be operatedwith the hub either vertical or at an inclination to the vertical, sothat if desired ditches of different shapes may be formed, or the dirtmay be thrown and scattered to one side of the plow so as to therebyform a smooth plowed surface which will not require harrowin or othertreatment.

A further object of this invention is to provide a rotary plow whichincludes a spider-like hub having secured to the arms thereofsector-shaped blades having upturned leading edges and the blades beingmounted on an angle to the vertical.

To the foregoing objects, and others which may hereinafter more fullyappear, the invention consists of the novel construction, combinationand arrangement of parts, as will be more specifically referred to andillustrated in the accompanying drawings, but it is to be understoodthat changes, variations, and modifications may be resorted to whichfall within the scope of the invention as claimed.

In the drawings:

Figure 1 is a detailed side elevation of a rotary plow constructedaccording to an embodiment of this invention.

Figure 2 is a top plan view of the plo'w.

Figure 3 is a bottom plan of one of the plow blades.

Figure 4 is a front edge view of one of the blades.

Figure 5 is a fragmentary sectional view taken on the line 55 of Figure3.

Referring to the drawings, the numeral i0 designates generally a spidermember which is formed of a hub II having a polygonal bore I3therethrough. The hub II has extending radially therefrom a plurality ofarms I2 which have inclined upper faces and on which are mountedsector-shaped plow blades generally designated as M. Each plow blade I4is formed of a sectorshaped plate having an upturned leading edge I5which is beveled as indicated at I6. The plow blade 54 also includes atrailing edge I! which is substantially longer than the leading edge I 5and the outer edge is of each blade I4 is formed on an arc. The junctionbetween the leading and trailing edges l5 and I1, respectively, isformed in a rounded nose I9 which as shown in Figure 4 is upturned andthe blade I4 on the rear side thereof is formed with a bevel 20extending upwardly along the trailing edge IT.

The blade M is formed with a polygonal opening 28 through which afastening member 22 is adapted to engage for securing th blade to an armI 2. Each blade I4 is inclined to the vertical when positioned on asupporting arm l2 and this plow blade structure may be used with thelongitudinal axis of the bore i 3 either vertical or at an inclinationto the vertical.

Where a substantially V-shaped ditch is to be formed. the axis of thehub II may be disposed in a vertical po ition. Where the dirt is to bepulverized and thrown laterally of at least one side of the line oftravel, the plow structure may be inclined to the vertical to the extentthat the leading ed-e I5 will be in substantially a horizontal position.

In the use of this plow structure the hub II is secured to a shafthaving the polygonal end portion so that the hub II will be held againstrotation relative to the shaft. Upon rotation of the plow structure thedirt will be substantially pulverized and will be thrown upwardly andoutwardly. Where it is desired merely to pulverize the dirt, a suitableshield may be disposed about at least a portion of the area formed bythe plow so that the dirt will be thrown to only one side of the line oftravel. Where a V-shaped ditch such as an irrigation ditch or the likeis to be formed. the plow structure is mounted in substantially avertical position with respect to the axis of the hub I I. With a plowstructure as hereinbefore described the dirt will be readily pulverizedand loosened so that it will not be necessary to work over the ground asecond time with a harrow, rake or other implement as is the case with aconventional plow.

I claim:

1. A rotary plow comprising a hub, a plurality of radial arms fixed tosaid hub and each formed with a surface inclined to the vertical, asector shaped plow blade fixed to each of said arms on the inclinedsurface thereof, each of said blades being disposed with its narrow endlowermost and its inner edge lying within a vertical plane tangential tosaid hub and the outer edge inclined inwardly and formed with a bevelededge to provide a cutting edge.

2. A rotary plow comprising a hub, a plurality of radial arms fixed tosaid hub and each formed with the upper surface thereof inclined to thevertical, a sector shaped plow blade fixed to each of said arms on theinclined upper surface thereof, each of said blades being disposed withthe apex thereof lowermost and the inner edge lying within a verticalplane, the inwardly inclined outer edge of each of said blades beingbeveled to provide cutting means, said blades being formed concavelongitudinally and upwardly.

EUSTACE LORING ROSE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 416,830 Whitehead Dec. 10, 1889554,117 Franzen et a1. Feb. 4, 1896 768,106 Williams Aug. 23, 1904 51,119,862 Nilson et a1. Dec. 8, 1914 I FOREIGN PATENTS Number CountryDate 20,259 Great Britain of 1901

